aruj khan died in july, less than a month after he scratched off a $1 million jackpot. cyanide poisoning can be hard to find. the chemical can be found in a variety of industrial settings. >> if you are going to try to conduct the perfect murder this is a good way to do it. if you worked in a metal processing plant, electroplating, for example. or if you worked with insecticides. >> medical examiner first determined khan died of natural causes, but then took a second look after getting a call from a relative days after his death. >>> and a restaurant in north carolina cooking up controversy. it shows a taco being used as bait. it has drawn national attention after a local reporter tweeted a picture of the shirt. it sends a racist message. >> using a taco to catch a human being? >> nonetheless, the restaurant owner not apologizing. >> we pay taxes. if you are an illegal immigrant, you don't need to be here or get your job, paying your tax. we just not down for illegal immigra immigrants. >> the owner standing by the t-shirts, which by the way, sell for $35 a month. >>> s